APPROXIMATION OF MIXED TYPE FUNCTIONAL EQUATIONS IN p-BANACH SPACES

In this paper, we investigate the generalized Hyers-Ulam stability of the functional equation ∑^n_i=1 f(xi−1/n∑^n_j=1 xj)=n∑^n_i=1 f(xi)−nf(1/n∑^n_i=1 xi)(n≥2) in p-Banach spaces.